MESON Chess Problem Database
Problem Display
PID: 243248 (r7/7R/k2p1N2/PN6/2P5/1p3p2/bK1Q4/R6B w - - 0 1)
Larsen, Lars Aksglade (= Aksglade, Lars)
Tidskrift for Schack, 1980
#2
9 + 6
| 3713 | Snap | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ra7
- 2.Rxa7#
- 1...Rb8
- 2.Ra7#
- 1...Rc8
- 2.Ra7#
- 1...Rd8
- 2.Ra7#
- 1...Re8
- 2.Ra7#
- 1...Rf8
- 2.Ra7#
- 1...Rg8
- 2.Ra7#
- 1...Rh8
- 2.Ra7#
- 1...Bb1
- 2.Qxd6#
- 1...f2
- 2.Bb7#
- 1...Ra7
- Tries
- 1.Se4?
- 1...Ra7
- 2.Rxa7#
- 1...Rb8
- 2.Ra7#
- 1...Rc8
- 2.Ra7#
- 1...Rd8
- 2.Ra7#
- 1...Re8
- 2.Ra7#
- 1...Rf8
- 2.Ra7#
- 1...Rg8
- 2.Ra7#
- 1...Rh8
- 2.Ra7#
- 1...Bb1
- 2.Qxd6#
- 1...d5
- 2.Sc5#
- 1...f2!
- 1...Ra7
- 1.Sg4?
- 1...Ra7
- 2.Rxa7#
- 1...Rb8
- 2.Ra7#
- 1...Rc8
- 2.Ra7#
- 1...Rd8
- 2.Ra7#
- 1...Re8
- 2.Ra7#
- 1...Rf8
- 2.Ra7#
- 1...Rg8
- 2.Ra7#
- 1...Rh8
- 2.Ra7#
- 1...Bb1
- 2.Qxd6#
- 1...f2
- 2.Bb7#
- 1...d5!
- 1...Ra7
- 1.Sh5?
- 1...Ra7
- 2.Rxa7#
- 1...Rb8
- 2.Ra7#
- 1...Rc8
- 2.Ra7#
- 1...Rd8
- 2.Ra7#
- 1...Re8
- 2.Ra7#
- 1...Rf8
- 2.Ra7#
- 1...Rg8
- 2.Ra7#
- 1...Rh8
- 2.Ra7#
- 1...Bb1
- 2.Qxd6#
- 1...f2
- 2.Bb7#
- 1...d5!
- 1...Ra7
- 1.Se8?
- 1...Rxe8
- 2.Ra7#
- 1...Ra7
- 2.Rxa7#
- 1...Rb8
- 2.Ra7#
- 1...Rc8
- 2.Ra7#
- 1...Rd8
- 2.Ra7#
- 1...Bb1
- 2.Qxd6#
- 1...f2
- 2.Sec7#
- 2.Bb7#
- 1...d5!
- 1...Rxe8
- 1.Sg8?
- 1...Rxg8
- 2.Ra7#
- 1...Ra7
- 2.Rxa7#
- 1...Rb8
- 2.Ra7#
- 1...Rc8
- 2.Ra7#
- 1...Rd8
- 2.Ra7#
- 1...Re8
- 2.Ra7#
- 1...Rf8
- 2.Ra7#
- 1...Bb1
- 2.Qxd6#
- 1...f2
- 2.Bb7#
- 1...d5!
- 1...Rxg8
- 1.Bxf3?
- threat
- 2.Bb7#
- 1...Ra7
- 2.Rxa7#
- 1...Rb8
- 2.Ra7#
- 1...d5!
- threat
- 1.Re1?
- 1...d5
- 2.Re6#
- 1...Ra7
- 2.Rxa7#
- 1...Rb8
- 2.Ra7#
- 1...Rc8
- 2.Ra7#
- 1...Rd8
- 2.Ra7#
- 1...Re8
- 2.Ra7#
- 1...Rf8
- 2.Ra7#
- 1...Rg8
- 2.Ra7#
- 1...Rh8
- 2.Ra7#
- 1...f2
- 2.Bb7#
- 1...Bb1!
- 1...d5
- 1.Rb7?
- threat
- 2.Rb6#
- 1...Rb8
- 2.Ra7#
- 1...Kxb7!
- threat
- 1.Rc7?
- 1...Ra7
- 2.Rxa7#
- 1...Rb8
- 2.Ra7#
- 1...Rc8
- 2.Ra7#
- 1...Rd8
- 2.Ra7#
- 1...Re8
- 2.Ra7#
- 1...Rf8
- 2.Ra7#
- 1...Rg8
- 2.Ra7#
- 1...Rh8
- 2.Ra7#
- 1...Bb1
- 2.Qxd6#
- 1...f2
- 2.Bb7#
- 1...d5!
- 1...Ra7
- 1.Rd7?
- 1...Ra7
- 2.Rxa7#
- 1...Rb8
- 2.Ra7#
- 1...Rc8
- 2.Ra7#
- 1...Rd8
- 2.Ra7#
- 1...Re8
- 2.Ra7#
- 1...Rf8
- 2.Ra7#
- 1...Rg8
- 2.Ra7#
- 1...Rh8
- 2.Ra7#
- 1...Bb1
- 2.Qxd6#
- 1...f2
- 2.Bb7#
- 2.Rxd6#
- 1...d5!
- 1...Ra7
- 1.Re7?
- 1...Ra7
- 2.Rxa7#
- 1...Rb8
- 2.Ra7#
- 1...Rc8
- 2.Ra7#
- 1...Rd8
- 2.Ra7#
- 1...Re8
- 2.Ra7#
- 1...Rf8
- 2.Ra7#
- 1...Rg8
- 2.Ra7#
- 1...Rh8
- 2.Ra7#
- 1...Bb1
- 2.Qxd6#
- 1...f2
- 2.Bb7#
- 1...d5!
- 1...Ra7
- 1.Rf7?
- 1...Ra7
- 2.Rxa7#
- 1...Rb8
- 2.Ra7#
- 1...Rc8
- 2.Ra7#
- 1...Rd8
- 2.Ra7#
- 1...Re8
- 2.Ra7#
- 1...Rf8
- 2.Ra7#
- 1...Rg8
- 2.Ra7#
- 1...Rh8
- 2.Ra7#
- 1...Bb1
- 2.Qxd6#
- 1...f2
- 2.Bb7#
- 1...d5!
- 1...Ra7
- 1.Rg7?
- 1...Ra7
- 2.Rxa7#
- 1...Rb8
- 2.Ra7#
- 1...Rc8
- 2.Ra7#
- 1...Rd8
- 2.Ra7#
- 1...Re8
- 2.Ra7#
- 1...Rf8
- 2.Ra7#
- 1...Rg8
- 2.Ra7#
- 1...Rh8
- 2.Ra7#
- 1...Bb1
- 2.Qxd6#
- 1...f2
- 2.Bb7#
- 1...d5!
- 1...Ra7
- 1.Qe3?
- threat
- 2.Qb6#
- 1...Rb8
- 2.Ra7#
- 2.Qa7#
- 1...Kxa5!
- threat
- 1.Qb4?
- 1...Ra7
- 2.Rxa7#
- 1...Rb8
- 2.Ra7#
- 1...Rc8
- 2.Ra7#
- 1...Rd8
- 2.Ra7#
- 1...Re8
- 2.Ra7#
- 1...Rf8
- 2.Ra7#
- 1...Rg8
- 2.Ra7#
- 1...Rh8
- 2.Ra7#
- 1...Bb1
- 2.Qxd6#
- 1...f2
- 2.Bb7#
- 1...d5!
- 1...Ra7
- 1.Qf2?
- threat
- 2.Qb6#
- 1...Rb8
- 2.Ra7#
- 2.Qa7#
- 1...Kxa5!
- threat
- 1.Qd4?
- threat
- 2.Qb6#
- 1...Rb8
- 2.Ra7#
- 2.Qa7#
- 1...Kxa5!
- threat
- 1.Qd5?
- threat
- 2.Qxa8#
- 1...Ra7
- 2.Rxa7#
- 1...Rb8
- 2.Ra7#
- 1...Rc8
- 2.Ra7#
- 1...Rd8
- 2.Ra7#
- 1...Re8
- 2.Ra7#
- 1...Rf8
- 2.Ra7#
- 1...Rg8
- 2.Ra7#
- 1...Rh8
- 2.Ra7#
- 1...Kxa5!
- threat
- 1.Se4?
- Keys
- 1.Sd5!
- 1...Ra7
- 2.Rxa7#
- 1...Rb8
- 2.Ra7#
- 1...Rc8
- 2.Ra7#
- 1...Rd8
- 2.Ra7#
- 1...Re8
- 2.Ra7#
- 1...Rf8
- 2.Ra7#
- 1...Rg8
- 2.Ra7#
- 1...Rh8
- 2.Ra7#
- 1...Bb1
- 2.Sb4#
- 1...f2
- 2.Sdc7#
- 1...Ra7
- 1.Sd5!
Anticipated by 184290(1980)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(f);N_GUARD::R1(I),XR(f)
- R(f);N_GUARD::R1(I)
- B(a);::QAR(D),XP(e)
- P(c);OGATE::B(B)
- Tries
- Try
- S(H);
- Vars
- R(f);N_GUARD::R1(I),XR(f)
- R(f);N_GUARD::R1(I)
- B(a);::QAR(D),XP(e)
- P(e);N_GUARD::S(H)
- Refutation
- P(c);
- Try
- S(H);
- Vars
- R(f);N_GUARD::R1(I),XR(f)
- R(f);N_GUARD::R1(I)
- B(a);::QAR(D),XP(e)
- P(c);OGATE::B(B)
- Refutation
- P(e);
- Try
- S(H);
- Vars
- R(f);N_GUARD::R1(I),XR(f)
- R(f);N_GUARD::R1(I)
- B(a);::QAR(D),XP(e)
- P(c);OGATE::B(B)
- Refutation
- P(e);
- Try
- S(H);
- Vars
- R(f);N_GUARD,XS(H)::R1(I)
- R(f);N_GUARD::R1(I),XR(f)
- R(f);N_GUARD::R1(I)
- B(a);::QAR(D),XP(e)
- Refutation
- P(e);
- Try
- S(H);
- Vars
- R(f);N_GUARD,XS(H)::R1(I)
- R(f);N_GUARD::R1(I),XR(f)
- R(f);N_GUARD::R1(I)
- B(a);::QAR(D),XP(e)
- P(c);OGATE::B(B)
- Refutation
- P(e);
- Try
- B(B);XP(c)
- Threat
- B(B)
- Vars
- R(f);N_GUARD::R1(I),XR(f)
- R(f);N_GUARD::R1(I)
- Refutation
- P(e);
- Try
- R(A);
- Vars
- P(e);OGATEB::R(A)
- R(f);N_GUARD::R1(I),XR(f)
- R(f);N_GUARD::R1(I)
- P(c);OGATE::B(B)
- Refutation
- B(a);
- Try
- R(I);
- Threat
- R1(I)
- Vars
- R(f);N_GUARD::R1(I)
- Refutation
- K(d);P_SPINP(c),S_FLIGHT,XR(I)
- Try
- R(I);
- Vars
- R(f);N_GUARD::R1(I),XR(f)
- R(f);N_GUARD::R1(I)
- B(a);::QAR(D),XP(e)
- P(c);OGATE::B(B)
- Refutation
- P(e);
- Try
- R(I);
- Vars
- R(f);N_GUARD::R1(I),XR(f)
- R(f);N_GUARD::R1(I)
- B(a);::QAR(D),XP(e)
- Refutation
- P(e);
- Try
- R(I);
- Vars
- R(f);N_GUARD::R1(I),XR(f)
- R(f);N_GUARD::R1(I)
- B(a);::QAR(D),XP(e)
- P(c);OGATE::B(B)
- Refutation
- P(e);
- Try
- R(I);
- Vars
- R(f);N_GUARD::R1(I),XR(f)
- R(f);N_GUARD::R1(I)
- B(a);::QAR(D),XP(e)
- P(c);OGATE::B(B)
- Refutation
- P(e);
- Try
- R(I);
- Vars
- R(f);N_GUARD::R1(I),XR(f)
- R(f);N_GUARD::R1(I)
- B(a);::QAR(D),XP(e)
- P(c);OGATE::B(B)
- Refutation
- P(e);
- Try
- Q(D);
- Threat
- QAR1(D)
- Refutation
- K(d);P-FLIGHT,P_SPINB(a),XP(F)
- Try
- Q(D);
- Vars
- R(f);N_GUARD::R1(I),XR(f)
- R(f);N_GUARD::R1(I)
- B(a);::QAR(D),XP(e)
- P(c);OGATE::B(B)
- Refutation
- P(e);
- Try
- Q(D);
- Threat
- QAR1(D)
- Refutation
- K(d);P-FLIGHT,P_SPINB(a),XP(F)
- Try
- Q(D);
- Threat
- QAR1(D)
- Refutation
- K(d);P-FLIGHT,P_SPINB(a),XP(F)
- Try
- Q(D);
- Threat
- QAR2(D),XR(f)
- Vars
- R(f);N_GUARD::R1(I),XR(f)
- R(f);N_GUARD::R1(I)
- Refutation
- K(d);P-FLIGHT,P_SPINB(a),XP(F)
- Try
- Actual
- S(H);
- Vars
- R(f);N_GUARD::R1(I),XR(f)
- R(f);N_GUARD::R1(I)
- B(a);::S(H)
- P(c);::S(H)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).